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CVE-2015-4103

Published: 3 June 2015

Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.

Priority

Medium

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (2.0.0+dfsg-2ubuntu1.13)
upstream Needed

utopic
Released (2.1+dfsg-4ubuntu6.7)
vivid
Released (1:2.2+dfsg-5expubuntu9.2)
Patches:
upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=5c83b2f5b4b956e91dd6e5711f14df7ab800aefb



qemu-kvm
Launchpad, Ubuntu, Debian
precise Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

utopic Does not exist

vivid Does not exist

xen
Launchpad, Ubuntu, Debian
precise
Released (4.1.6.1-0ubuntu0.12.04.6)
trusty Does not exist
(trusty was released [4.4.2-0ubuntu0.14.04.2])
upstream Needed

utopic Ignored
(reached end-of-life)
vivid Not vulnerable
(code not present)
Patches:

upstream: http://xenbits.xen.org/xsa/xsa128-qemut.patch
upstream: http://xenbits.xen.org/xsa/xsa128-qemuu-4.3.patch
upstream: http://xenbits.xen.org/xsa/xsa128-qemuu.patch
Binaries built from this source package are in Universe and so are supported by the community.